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From Thu Apr 1 12:31:32 1999
Thu, 1 Apr 1999 12:31:30 -0800
From: Dale Beuning <>
Thu, 1 Apr 1999 12:31:25 -0800 (PST)
Subject: Re: Tech question
To: (Kruse John)
Date: Thu, 1 Apr 1999 12:31:24 -0800 (PST)
Cc: (Ron Stygar),

Have you read all of the following in the e36/stereo section? e36_amp_whine_noise.html

And these in the all/stereo section?
all_solving_alternater_stereo_whine.html all_stereo_info.html

It comes down to finding where the noise enters your system. You have a data cable and a power cable running to your changer, the noise is entering one way or the other. I'd suggest either taking it to a stereo shop for diagnosis, or buy a power filter and filter the power cable. If that doesn't help, I'd try re-routing the factory data cable down the other side of the car. One of the articles mentioned some '96- having a whine with the factory units, so the factory routing of the data cable could be the problem.

I have a '95 M3 which uses a different style changer and different data cable with no noise problems. I don't know if it's routed differently then the '96- cars.


> I sent the following to Ron also:
> I have read with interest the comments from other BMW owners. I recently
> purchased a used 1997 M3. Already I have installed my valentine 1 as
> recommended by one of the listers in the email archive through the sunroof
> switch panel--works great.
> I also took the recommendation to do business with and
> purchased the OEM 10 disk cd changer with Soundgate adapter for use with the
> OEM radio/tape player. I installed it myself, and it works as
> advertised...EXCEPT that I have to sit still to use it...
> Whenever I fire up the engine, I experience the same high pitched whine that
> varies with engine speed as Stuart M. did with his 1996 M3 in his factory CD
> changer (his letter to you is archived in the email as well August 1, 1996).
> This whine is most likely coming from the alternator or spark discharge, but
> what is strange is that I do not have the problem when the factory radio or
> tape is used. Unfortunately, there was no conclusion to Stuart M.'s letter
> about what worked to fix the problem. It is driving me crazy... Could you
> help me out or direct me to where I can go to for advice to correct this
> problem.
> I thank you in advance for any help you can give me.
> John Kruse
> 97 M3
> John Kruse


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